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Quiz
CBSE
/
Class 8
/
Maths
/
Rational Numbers
1.
Which of the following statements is true?
Natural numbers are not associative for multiplication
Whole numbers are not associative for multiplication
Integers are associative for multiplication
Rational numbers are not associative for multiplication.
2.
Which of the following statements is true?
Natural numbers are associative for division
Whole numbers are associative for division
Integers are associative for division
Rational numbers are not associative for division.
3.
0 is not
a natural number
a whole number
an integer
a rational number.
4.
\(\frac{1}{2}\) is 2
a natural number
a whole number
an integer
a rational number.
5.
a + b = b + a is called
commutative law of addition
associative law of addition
distributive law of addition
none of these.
6.
a × b = b × a is called
commutative law for addition
commutative law for multiplication
associative law for addition
associative law for multiplication.
7.
(a + b) + c = a + (b + c) is called
commutative law for multiplication
commutative law for addition
associative law for addition
associative law for multiplication.
8.
a × (b × c) = (a × b) × c is called
associative law for addition
associative law for multiplication
commutative law for addition
commutative law for multiplication.
9.
a(b + c) = ab + ac is called
commutative law
associative law
distributive law
none of these.
10.
The additive identity for rational numbers is
1
-1
0
none of these.
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